Problem with building LibreOffice in Cygwin 3.5.0 (child_info::sync: wait failed)

[Ilmari Lauhakangas]

We have multiple developers on Windows 11 reporting that Cygwin 3.5.0 
has a regression that makes building LibreOffice fail with these types 
of messages:

0 [main] sh 1280 child_info::sync: wait failed, pid 1288, Win32 error 183
321 [main] sh 1280 dofork: child 1288 - died waiting for dll loading, 
errno 11
/usr/bin/sh: fork: retry: Resource temporarily unavailable

Any ideas about this?

For reference, our build instructions are here: 
https://wiki.documentfoundation.org/Development/BuildingOnWindows

Regards,
Ilmari Lauhakangas